Car construction



1,666,299 K. F. NYSTROM 'CAR CONSTRUCTION Filed Avril 19. 1924 2Sheets-Sheet l April 17, 192s.

Patented Apr. 17,1928.

um. F. Nrs'rnon, or cmcaeo, rumors can. CONSTRUCTION.

Application :tiled April 18, 1924. Serial No. 707,570.

My invention relates more particularly to an improvement in refrigeratorcar construction and more especially to the method of construction`whereby a steel frame car may 6 be provided with suitable insulationand thereby utilized as a refrigerator car.

The invention has for its object the provision of a constructionwherein'a portion of the means emplo ed for holding the in- 10 sulationin place will also constitute means functioning as nailing strips towhich the inside lining of the car may be secured; while the variousbolts employed, whereby the steel posts or exterior braces are securedin place, are so arranged in the' walls of the car as to permit acomplete sealing of the bolt-heads and at the same time provide dead airspace insulation. v

The invention also has for its object a construction wherein the variouswall elements consisting of cleats or sub-posts and girths are soarranged as to securely hold the pliable insulating material 1n placeagainst sa ging; the ent-1re Wall construction, inclu ing the roof andthe floor belng such that a complete insulating blanket 1s providedwhich affords continuous insula- `tion at the side lates, namelyI at thesides and the ends of t e car as wel as across the to 'of the car.

llhe objects and advantages of m lnvention will be more clearlycomprehen ed from the detailed description of the accompanying drawings,wherein- Figure 1 is a vertical sectional viewof a ortion of a car, withintermediate portions liroken away, illustrating my improvedconstruction.

Fi 'ure 2 is a cross sectional view taken on 40 thelme 2-2 of Figure-1looking in the direc-tion of the arrows.

Figure 3 is a longitudinal sectional view of one end of a car, showingmy improved wall construction, with a portion of the car shown brokenaway.

Figure tis a detail sectional view of the ceiling construction. i'

My invention contemplates the utilization of a steel frame car as avrefrigerator car which, as exem liiied in the drawings, comprises asuitab e floor construction of subtimbers with floor-boards as indicatedat 10 all supported in the usual manner by the car-sills, one of whichis shown at 11, to

which the steel posts or Z-bar braces shown at 12, as well as the cornerplates or posts 13, are intended to be secured at their lower ends,while the upper ends thereof are secured to the angle members 14. Theangle members D14 have the steel side plates 15 secured thereto, which,in turn, overlap the outer side of the outside sheathing 16; thesheathingl 16 being preferably chamfered to receive t e side p ates asshown at 17. The outside sheathing 16, as clearly shown in Figure 1,extends to and rests on the side sills of the' car underframe and theentirek inner side of the outer sheathing is covered with suitablepliable insulating material 18 which is preferably arran ed in doublethickness or layers and preerably. of continuous sheets as shown. Theinsulating material 18 is also preferably placed intermediate of thepaper lining, indicated at 19, arranged along the inner side of theouter sheathing 16 and the inner sheathing or lining 2O extending fromthe upper edge of the topmost sheathing and the upper edge of anupper'wooden girth 21 which is secured in place by the bolts whichextend through the steel side plate and sheathing.

The car frame or wall construction also comprises a suitable number ofwooden cleats or sub-posts 22 preferably arranged at .equal distancesapart and disposed from top to bottom intermediate of the outersheathing 16 and the inside sheathing or lining 20 and bolted at top andbottom, with the bolt heads being preferably arranged as hereinafterdescrlbed.

The wooden sub-posts 22 are formed to receive the horizontally disposedwooden girths 21 therebetween; the girths being arranged at differenthorizontal levels and spaced apart as shown in Figure 1.

The girths are securedin place by bolts, as at 23, which extend throu hthe steel posts and outer ,sheathin T e heads of the bolts 23 arereferab y countersunk inthe girths 21; an before the bolts are put intoplace, the countersink is filled with a. sealing compound, as for examle an asphalt roduct, a portion whereof isl rawn into the bolt-holeswhen'the .bolts are inserted, thus completely sealing the bolt-holes.The counter sinking of the bolts is done to such an extent that, whenthe bolts are in place the heads, embedded in the sealing compound, a

dead air space will be provided between the vbolt.heads and the paperlining 19, as more and the heads thereof insertedin and sealed l with asuitable non-conducting compound ing and-arranged vto provide a deadair-space at the inner or head end of the bolts, a non- .heat conductingconnection between the car exterior and its interior is provided.

The various girths and the sub-posts are utilized and arranged to holdthe pliable insulating material, preferably hair -felt, in

place and prevents the material from shiftor from sagging toward thebottom;

while at the same time the girths and the osts also constitute nailingstripsfor the inside paper lining and the inner sheathmg. p v

The side wall is provided with a meatrail at 25, which is suitablybolted to the .sub-posts and extends through the inner sheathing of thecar. I

A The liable insulating material,-in the form op continuoussheets,ispreferably arranged in at least two layers as shown and thesheets continued from the :tloor-where it is arranged between thesub-floor 26 and the main floor l-upward along the side and end walls ofthe car and entirely across the top of the car, thus providing acomplete blanket of insulating material extend- 4 lng through all partsof the car to the doorposts on opposite sides of the door-opening;`

' the sheet or one layer being preferably arranged that its meeting endsare off-set from or disposed atk a different point from themeeting'edges of the other sheet 'as shown at 27 in Figure 1.

As'shown in Figure 1, the insulating sheets i i continue from the sidewall about the juncture of the side the insulation arranged between ,theblind vceiling 28 and the inner or mam ceiling 29.

wall and car ceiling, with The ceiling structure comprises the carline30,-which is secured to of'inverted channel formation,-in which a woodensub-carline 31 is secured by means of'bolts. The bolts which secure thesubcarline in place also constitute the means for holding suitableWooden cleats 32 in lace; the cleats being disposed beneath the bceiling 28 and firmly hold the insulatlind ing material in proper place.These cleats also constitute nailing strips for the main ceiling boards29. I also prefer to provide the juncture between the sides and the topof the car with a wooden fillet, as at 33 in vFigure 1, to provide atight juncture or corner.

As a result of my invention, a steel frame car may be utilized as arefrigerator car, which is completely enveloped by a blanket -sheathing,ing intermediate'of the blind ceiling and the or layer and supported 'bythev angle members 14, and is preferably of suitable insulating materialand wherein all bolts which extend from the car exterior are alsocompletely sealed, with -the result that a [very eilicient, thoroughlyinsulated refrigerator car is provided.

I have shown what I believe to be a simple embodiment of theinvention,which has been described in terms employed merely as terms ofdescription and not as terms of limitation, as structural modificationsare possible and may be made without, however, departing from the spiritof my invention.

What I claim is: Y

1. In av steel frame car provided With steel carlines,- a blind ceilingand a main ceiling, spaced apart, and outer sheathing and innerslieathngspaced apart, insulating ma, terial disposed between the .outerand inner extending upward and continumain-ceiling, cleats suspendedfrom the carlines, disposed beneath the insulating material andconstituting nailing strips for the ma-in ceiling, sub-posts and girthsarranged tween the insulating -material and the inner sheathing, thesub-posts and girths being provided with bolt-head receiving sockets,bolts extending through to the car exterior for securing the sub-postsand girths in place, and a sealing medi-um for the heads of the boltsextending to the car exterior.

2. In a channeled steel rame'car, provided with steel carlines, awoodenv sub-carline suspended from and secured in a channel of thesteelcarline, a blind ceiling adjacent to said wooden sub-carline, woodencleats suspended from the composite carlines beneath the blind ceilingin spaced relation therewith, common means yfor suspending the woodensub-carline and wooden cleats in place, insulating material between thecleats and the blind ceiling, cured to thel cleats.

3. In a steel frame car vprovided with channel steel carlines, woodensub-carlines secured in the channels of the carlines, wooden cleatssuspended from the carlines in spaced relation therewith, a blindceiling secured to the bottom of the sub-carlines, a main ceilingsecured to the bottoms of the cleats, and insulating material disposedinlil@ and a main ceiling setermediate of the two ceilings and. held nouter sheathing and inner sheathing arranged in spaced relation, steeloarlines having fibrous sub-carlines secured thereto, a blind ceilingsecured against the bottoms of sub-oarlines, a main ceiling suspendedfrom the carlines, continuous sheets of insulating material extendingfrom 'between the two ceilings down between the inner and outersheathing, and means whereby shifting of Said sheets is revented.

6. In a stee frame car provided with a double floor, a double ceiling,outer sheathing and inner sheathing arranged in spaced re ation,sub-posts between thel inner and outer sheathing, girths arrangedhorizontaly ly between the sub-posts, the sub-posts and girths havingcounter-sunk bolt-receiving openings, bolts whereby the sub-posts andgirths are secured to the-car outer frame, a blanket of pliableinsulating material disposed continuously between the double' floor,about the juncture of floor and walls, upward about the juncture of thewalls and ceiling and between the double ceiling,'said blanket beingarranged between the outer sheathing and the subposts and' girths, apaper lining between the girths and subposts and the inner sheathing,and a sealing between the sub-floor and main floor extending about thejuncture between the iioor and car walls, intermediate of the inner andouter wall sheathing about the juncture of the walls and the ceiling andbetween the blind ceiling and main ceiling s o as to provide acontmuous. insulating blanket about the top, sides, ends and bottom ofthe car, with longitudinal wooden members disposed'between the.sub-floor and main floor and between the blind ceiling and main ceilingfor holding the insulating material in place and constituting nailingstrips, and wooden members disposed vertical y and horizontallyintermediate of the wall sheathing, bolted to the steel frame membersand oar outer wall whereby the insulating material is held in vplace andnailing strips provided.

KARL F. NYSTROM.

